Window Film 101: A Gentle Guide to How It Works
https://kilo-wiki.win/index.php/The_Science_Behind_Window_Film:_Heat_Rejection_and_UV_Blocking
Window film is one of those home and workspace details that quietly changes how a room feels. It is not a single, magical solution, but a practical addition that can cut heat, reduce glare, and add a touch of privacy without altering the view